// Copyright (c) 2016, SolidCP
// SolidCP is distributed under the Creative Commons Share-alike license
// 
// SolidCP is a fork of WebsitePanel:
// Copyright (c) 2015, Outercurve Foundation.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// - Redistributions of source code must  retain  the  above copyright notice, this
//   list of conditions and the following disclaimer.
//
// - Redistributions in binary form  must  reproduce the  above  copyright  notice,
//   this list of conditions  and  the  following  disclaimer in  the documentation
//   and/or other materials provided with the distribution.
//
// - Neither  the  name  of  the  Outercurve Foundation  nor   the   names  of  its
//   contributors may be used to endorse or  promote  products  derived  from  this
//   software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,  BUT  NOT  LIMITED TO, THE IMPLIED
// WARRANTIES  OF  MERCHANTABILITY   AND  FITNESS  FOR  A  PARTICULAR  PURPOSE  ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL,  SPECIAL,  EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO,  PROCUREMENT  OF  SUBSTITUTE  GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)  HOWEVER  CAUSED AND ON
// ANY  THEORY  OF  LIABILITY,  WHETHER  IN  CONTRACT,  STRICT  LIABILITY,  OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE)  ARISING  IN  ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.SessionState;
using System.Net;
using System.Timers;

namespace SolidCP.EnterpriseServer
{
    public class Global : System.Web.HttpApplication
    {
        private int keepAliveMinutes = 10;
        private static string keepAliveUrl = "";
        private static Timer timer = null;

        protected void Application_Start(object sender, EventArgs e)
        {
        }

        protected void Application_End(object sender, EventArgs e)
        {
        }

		protected void Application_BeginRequest(object sender, EventArgs e)
		{
			// ASP.NET Integration Mode workaround
			if (String.IsNullOrEmpty(keepAliveUrl))
			{
				// init keep-alive
				keepAliveUrl = HttpContext.Current.Request.Url.ToString();
				if (this.keepAliveMinutes > 0)
				{
					timer = new Timer(60000 * this.keepAliveMinutes);
					timer.Elapsed += new ElapsedEventHandler(KeepAlive);
					timer.Start();
				}
			}
		}

        public override void Init()
        {
            
        }

        private void KeepAlive(Object sender, System.Timers.ElapsedEventArgs e)
        {
            using (HttpWebRequest.Create(keepAliveUrl).GetResponse()) { }
        } 
    }
}
